Revert "[kernel] Stream everything. Replace .kernel_function with .kernel_offset"

runtime/vm/kernel_binary.cc

 // Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 #if !defined(DART_PRECOMPILED_RUNTIME)
 
 #include "vm/kernel_binary.h"
 #include "platform/globals.h"
 #include "vm/flags.h"
 #include "vm/growable_array.h"
 #include "vm/kernel.h"
@@ skipping 239 matching lines @@
   type_parameters_.ReadFrom(reader);
   type_ = DartType::ReadFrom(reader);
 
   return this;
 }
 
 
 Class* Class::ReadFrom(Reader* reader) {
   TRACE_READ_OFFSET();
 
-  kernel_offset_ = reader->offset() - 1;  // -1 to include tag byte.
   canonical_name_ = reader->ReadCanonicalNameReference();
   position_ = reader->ReadPosition(false);
   is_abstract_ = reader->ReadBool();
   name_index_ = StringIndex(reader->ReadUInt());
   source_uri_index_ = reader->ReadUInt();
   reader->set_current_script_id(source_uri_index_);
   reader->record_token_position(position_);
   annotations_.ReadFromStatic<Expression>(reader);
 
   can_stream_ = annotations_.CanStream();
@@ skipping 1566 matching lines @@
   function->kernel_offset_ = reader->offset();
   Tag tag = reader->ReadTag();
   ASSERT(tag == kFunctionNode);
   function->position_ = reader->ReadPosition();
   function->end_position_ = reader->ReadPosition();
   function->async_marker_ =
       static_cast<FunctionNode::AsyncMarker>(reader->ReadByte());
   function->dart_async_marker_ =
       static_cast<FunctionNode::AsyncMarker>(reader->ReadByte());
   function->type_parameters().ReadFrom(reader);
-  reader->ReadUInt();  // total parameter count.
   function->required_parameter_count_ = reader->ReadUInt();
   function->positional_parameters().ReadFromStatic<VariableDeclarationImpl>(
       reader);
   function->named_parameters().ReadFromStatic<VariableDeclarationImpl>(reader);
   function->return_type_ = DartType::ReadFrom(reader);
 
   LabelScope<ReaderHelper, BlockStack<LabeledStatement> > labels(
       reader->helper());
   VariableScope<ReaderHelper> vars(reader->helper());
   function->body_ = reader->ReadOptional<Statement>();
@@ skipping 21 matching lines @@
 
 kernel::Program* ReadPrecompiledKernelFromBuffer(const uint8_t* buffer,
                                                  intptr_t buffer_length) {
   kernel::Reader reader(buffer, buffer_length);
   return kernel::Program::ReadFrom(&reader);
 }
 
 
 }  // namespace dart
 #endif  // !defined(DART_PRECOMPILED_RUNTIME)